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Fig. 1.

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Planck CMB lensing map (with a FWHM  =  1° Gaussian smoothing) highlighted within the WISE-PS1 sky area, where we performed a robust measurement of voids × CMB κ cross-correlations. The data is divided into two larger patches, labeled as north and south, comprising an unmasked area of approximately A = 14 200 deg2.

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